Typewriting machine



Feb. 21, 1928.

E. B. HESS TYPEWRITING MACHINE Filed Au. 1. 1924 I jlIIoEZlIIQE TAN U F whmul Patented Feb. 21, 1928.

' UNITED STATES EDWARD B. HESS, OF NEW YORK, N. Y., ASSIGNOR TO ROYAL TYIEWRITER COMPANY, INC., 01 NEW YORK, N. Y., A CORPORATION OF NEW YORK.

'rvrnwmrme mourns.

Application filed August 1, 1924. Serial No. 729,506.

My invention relates to a specific form of margin stop and location of the same adjacent to a scale carried by the upper edge of the usual paper table. The margin stop is 6 provided with an index or pointer which operates directly with the scale but without any interference with the feed of the paper.

An object otthe invention is to provide such a construction which will be simple yet 0 coinpact and particularly adapted to portable and small size machines where considerations of space are important.

Another object of the invention is to so mount the margin stop that it can be adjustl6 ed by direct reference to the scale carried by the paper table without the necessity of reaching-a great distance behind the paper table or manipulating any other parts.

A further object of the invention is to 2 provide an adjustable indicator or index on the margin stop so that it may be adjusted if necessary to cooperate with the required indication for which the stop is set.

Other ob'ects will be apparent from the following etailed description and the appended claims.

In the drawings:

Figure 1 is a top plan view.

Figure 2 is a front elevation.

Figure 3 is a transverse section on the line 3-3 of Figure 1.

Figure 4 is a transverse section through the margin stop bar, and paper table showin a modification. v a Figure 5 is a top plan view of the adjustablp index of the form shown in Figures 1 an 3.

The invention is illustrated as applied to the carriage of a small compact portable 40 .machine 'which carriage comprises sideframes A joined by a base plate A, a rod a, and a margin stop rod a. From many aspects, however, it is immaterial what is the character of the typewriting machine to which this invention is applied.

A platen B of the usual or any desired type is mounted in the end plates or side frames A of the carriage, and the platen spindle B is provided with the usual knobs l0 b for turning the same. The paper table C may also be of any usual or desired type and the mounting therefor has not been illustrated since it forms no part of the invention. Arms D mounted outside the ends 66 of the carriage on the rod a extend forward- 1,659,601 PATENT OFFICE.

ly and are connected at their front ends by a rod D carrying adjustable and rotatable feed rollsYZ which bear upon the platen at the top thereof. This frame is held in position with the rolls against the platen by a spring d.

The paper table is provided at its upper rear edge with a scale E gradated to correspond with the letter space positions of the carriage. This scale may be u on the extreme edge and the portion o the paper table bearing the same maylie-in the same plane as the main body thereof as shown in Figures 1, 2 and 3, or it may be depressed a slight distance as shown in Figure L The margin stop bar or rod a may be of any desired character, toothed or plain, and the stop itself may havea body portion embracing or fitting over the bar 1n any pre ferred form and held by any desired form of detent mechanism. This stop F is shown" as provided with a finger piece 7 by which it may be adjusted. The bar is located just behind and under the extreme rear edge of the paper table, and it is only necessary just to reach over the paper table to adjust the stops. Mounted on the stop F by means of a screw 9 passing through a slot g is an adjustable indicator or index member G which comprises a base portion H in which is formed the slotg', a shorter vertical ortion H and a horizontal forwardly pro ecting index member h provided with an index line h which is adapted to register with the gradations of the scale E. By loosening the screw 9 the index member G may be adjusted so that the line k will register properly with the gradations of the scale E.

In the modification disclosed in Figure 4 the margin stop bar a is mounted slightly higher and the paper table has the scale E in a depressed portion 0 extending adjacent the upper edge. The index member K carried by the margin stop F is a flat piece attached to the top of the margin stop by pin and slotas in Figure 1, and the indicating portion 70 is inclined in parallelism with the depressed portion of the scale and lies immediately "thereover. Obviously this arrangement will not interfere with the free insertion or movement of the paper over the paper table.

It will be obvious from an inspection of Figure 2 that the index k is clearly visible Ill to the operator,-and when it is desired to adjust the margin stop to any desired posi-- and moves the stop to the desired letter space position according to the scale E. The stops are very easy of access and can be quickly and accurately adjustedwithout anytrouble. There is no long handle to be seized for the adjustment of the'st'ops, which would cause them to bind on the stop bar, nor does any portion of the carriage construction need to be moved from its normal position to enable the desired adjustment.

The paperv table illustrated is more commonly referred to in the art as a paper apron and it has certain of the functions of both. In the absence of any clear concise term covering both paper tables and paper aprons, the use of either of these terms in the claims is to be regarded as having a broad significance.

Various detailsmay be modified without in any way departing from the spirit of the invention, which is to be regarded as limited only by the scope of the appended claims.

I claim as my invention:

1. In a visible typewriting machine, the combination of a carriage, a paper apron carried thereby, a scale on the upper rear edge of the paper apron, a stop bar immediately behind the paper apron and closely adjacent the upper edge thereof, a stop carried by said bar and provided with an 3 indication registering with the scale and with a finger piece extending adjacent to the upper edge of the paper apron, the parts being so arranged that the stop, indication, scale, and finger piece are visible and accessible to the operator from the front of the machine.

2. In atypewriting machine, the combination of a carriage, a paper apron having scale gradations on its rear edge, a margin stop bar immediately behind and closely adjacent the rear. edge of the paper apron, a margin stop adjustably mounted thereon and an indicator member carried by the stop, said member comprisin a substantially flat portion engaging having an elongated slot therethrough through which passes holding means, an upwardly extending portion, and a forwardly extending portion provided with an indicating line adapted to register with the scale' gradations.

3. In a visible typewriting machine, the combination of a carriage, a paper apron carried thereby, a scale on the upper rear edge of the paper apron, a stop bar immediately behind the paper apron and closely adjacent the upper edge thereof, a stop carried by said bar, and an indicator member adjustably carried by said stop and having a portion adapted to be brought into register with said scale, said indicator being rigid against bending in letter space direction.

In testimony whereof, I have hereunto subscribed my name.

' EDWARD B. HESS.

the stop and 

